LIZong-qiang,GUOHan-jun,SHUMin.Design of Large-diameter Initial Rainwater Storage Pipelines[J].China Water & Wastewater,2025,41(10):46-52.
Design of Large-diameter Initial Rainwater Storage Pipelines
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第41卷
Number:
第10期
Page:
46-52
Column:
Date of publication:
2025-05-17
- Keywords:
- initial rainwater; storage pipeline; large-diameter; flushing and dredging; computational fluid dynamics (CFD) technique
- Abstract:
- In recent years, Shanghai has actively promoted the construction of initial rainwater regulation and storage facilities to further mitigate the pollution caused by initial rainwater runoff and stormwater pumping stations, achieving phased outcomes. Construction land in the downtown area of Shanghai is relatively limited, and the site selection and construction format for initial rainwater storage facilities in urbanized areas present the most significant challenge in engineering design. Utilizing large-diameter storage pipelines can address issues such as project implementation challenges; however, numerous bottlenecks and difficulties remain in terms of construction, operation, and maintenance. The design capacity of an initial rainwater storage pipeline project in Shanghai is 11 300 m3, and the pipe with a diameter of DN5 000 is utilized. This approach facilitated the implementation of the project while addressing challenges in the process design for sediments flushing, influent pretreatment, and deodorization of the pipeline. This paper focused on the comparison and validation of the flushing and dredging methods for the pipelines, as well as the simulation analysis conducted using computational fluid dynamics (CFD) technique. These findings can serve as a reference for similar projects.
Last Update:
2025-05-17